2026 GMC Sierra 1500 SLT Towing RV
This build shows the 2026 GMC Sierra 1500 SLT (13,000 lb towing capacity) paired with the RV (0 lbs dry weight). With 614 lbs of cargo, this combination is within the 80% safe towing guideline.
Half-Ton Pickup
2026 GMC
Sierra 1500 SLT
5.3L V8 · 4WD
Vehicle image
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Travel Trailer
Towing Capacity
13,000 lbs
Max Towing Capacity
823 lbs
Total Tow Weight (RV + Cargo)
12,177 lbs
Remaining Capacity
Tow Weight Breakdown
Total: 823 lbs
RV Dry Weight
0 lbs
Base trailer weight
Fresh Water
167 lbs
50% of 40 gal tank
Propane
42 lbs
100% capacity
RV Cargo
614 lbs
Gear inside trailer
Payload Capacity (Weight ON Truck)
Truck Capacity: 1,910 lbs
Using: 518 lbs
Tongue Weight
0 lbs
12.5% of GVWR
Passengers
360 lbs
2 people in truck
Truck Bed Cargo
158 lbs
Hitch equipment
Gear & Cargo
In Truck: 108 lbs
In Trailer: 614 lbs
Fresh Water
50% (167 lbs)
Propane
100% (42 lbs)
In Truck Bed
108 lbs
Ice
20 lbs
Adds to payload capacity
In Trailer/RV
614 lbs
Toiletries ×2
20 lbs
Extra Bedding ×4
80 lbs
Towels & Linens ×2
20 lbs
Bicycles ×2
60 lbs
Adds to tow weight
Estimated Fuel Economy
17
Solo MPG
16.7
Towing MPG
-2%
$20.96
Per 100 Miles
@ $3.50/gal
Have a Different Rig?
Build your own custom towing setup from scratch with our calculator
Create Your BuildVehicle Specs
Full Specs →2026 GMC Sierra 1500 SLT
Max Towing
13,000 lbs
80% Guideline
10,400 lbs
Payload
1,910 lbs
MPG
17 combined
Engine
5.3L V8
RV Specs
Full Specs →RV
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